Extension-questionnaire-referencefilter.xml

Filter to apply when looking up references

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="questionnaire-referenceFilter"/>
  <url value="http://hl7.org/fhir/StructureDefinition/questionnaire-referenceFilter"/>
  <name value="Filter to apply when looking up references"/>
  <status value="draft"/>
  <publisher value="HL7"/>
  <contact>
    <telecom>
      <system value="other"/>
      <value value="http://www.hl7.org"/>
    </telecom>
  </contact>
  <date value="2013-07-04"/>
  <description value="Identifies a filter to apply when looking up candidate answers for the question."/>
  <fhirVersion value="1.2.0"/>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM"/>
  </mapping>
  <kind value="datatype"/>
  <constrainedType value="Extension"/>
  <abstract value="false"/>
  <contextType value="resource"/>
  <context value="Questionnaire.item"/>
  <context value="Questionnaire.item.item"/>
  <base value="http://hl7.org/fhir/StructureDefinition/Extension"/>
  <snapshot>
    <element>
      <path value="Extension"/>
      <short value="Filter to apply when looking up references"/>
      <definition value="Identifies a filter to apply when looking up candidate answers for the question."/>
      <comments value="The filter may include $subj and/or $encounter which should be substituted by the implementer
       with the subject and/or encounter id relevant in the context in which the questionnaire
       is being populated."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-expression">
          <valueString value="$parent.type='reference'"/>
        </extension>
        <key value="inv-13"/>
        <severity value="error"/>
        <human value="Allowed reference filter can only be specified for items of type 'reference'"/>
        <xpath value="parent::*/f:type/@value='reference'"/>
      </constraint>
      <mapping>
        <identity value="rim"/>
        <map value="N/A - MIF rather than RIM level"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Extension.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.extension"/>
      <name value="extension"/>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Extension.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
    </element>
    <element>
      <path value="Extension.url"/>
      <representation value="xmlAttr"/>
      <short value="identifies the meaning of the extension"/>
      <definition value="Source of the definition for the extension code - a logical name or a URL."/>
      <comments value="The definition may point directly to a computable or human-readable definition of the
       extensibility codes, or it may be a logical URI as declared in some other specification.
       The definition should be version specific.  This will ideally be the URI for the Resource
       Profile defining the extension, with the code for the extension after a #."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/questionnaire-referenceFilter"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.valueString"/>
      <short value="Value of extension"/>
      <definition value="Value of extension - may be a resource or one of a constrained set of the data types (see
       Extensibility in the spec for list)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element>
      <path value="Extension"/>
      <short value="Filter to apply when looking up references"/>
      <definition value="Identifies a filter to apply when looking up candidate answers for the question."/>
      <comments value="The filter may include $subj and/or $encounter which should be substituted by the implementer
       with the subject and/or encounter id relevant in the context in which the questionnaire
       is being populated."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-expression">
          <valueString value="$parent.type='reference'"/>
        </extension>
        <key value="inv-13"/>
        <severity value="error"/>
        <human value="Allowed reference filter can only be specified for items of type 'reference'"/>
        <xpath value="parent::*/f:type/@value='reference'"/>
      </constraint>
      <mapping>
        <identity value="rim"/>
        <map value="N/A - MIF rather than RIM level"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.extension"/>
      <name value="extension"/>
      <max value="0"/>
    </element>
    <element>
      <path value="Extension.url"/>
      <type>
        <code value="uri"/>
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/questionnaire-referenceFilter"/>
    </element>
    <element>
      <path value="Extension.value[x]"/>
      <min value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
  </differential>
</StructureDefinition>